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In contemporary nuclear physics, the European Advanced GAmma Tracking Array (AGATA) represents a crucial detection system for cutting-edge nuclear structure studies. AGATA consists of highly segmented high-purity germanium crystals and uses the pulse-shape analysis technique to determine both the position and the energy of the γ-ray interaction points in the crystals. It is the tracking algorithms
The critical effect of load representation in voltage stability studies is discussed in this paper. Under the same conditions in the system, the load representation will affect the location of the operating point in a P-V curve representation, leading the system closer to or further from the collapse point. The use of dynamic load models in voltage stability studies is motivated, especially in tho
Popular Abstract in Swedish Digital bildteknik dominerar snart all bildhantering inom alla delar av samhället. Målsättningen med denna avhandling var att utveckla en undersökningsmetod för mätning av knäleden i belastat läge med hjälp av digital bildplatteteknik. Vad är bildplatteteknik? Traditionellt har röntgenbilder framställts med hjälp av fotografisk film. De framkallade bilderna har sedan The overall aim of this study was to develop and evaluate a measurement system for computed radiography (CR) and Picture Archiving and Communication Systems (PACS), permitting measurements of long distances and angles in and between related images. The developed measurement system, which was based on the QUESTOR Precision Radiography (QPR) system, was applied to the weight-bearing knee with specia
Accidents and injuries caused by electricity are work environment risks for electricians. About a 100 cases are reported annually to the Swedish Work Environment Authority. The safety culture at the electricians’ workplaces can affect the successfulness of safety management and the prevention of injuries. This paper presents preliminary questionnaire and interview findings on the perceived workpla
Delays and cost overruns are frequent problems in the construction industries of both developed and developing countries. Studies aimed at identifying the causes are often undertaken with just a broad appreciation of the construction process and frequently do not deal with multicultural issues when considering the reasons for overruns. The paper critically reviews existing attempts to uncover the
Following a brief discussion on aspects of visual appearance and roles respectively, two user studies are presented and discussed. Both focus on learner experiences and explore the reciprocal relation between visual appearance of virtual agents and their pedagogical roles. The paper concludes with some preliminary guidelines for the early stages of the design process of virtual pedagogical agents.
The present international standards for safety, protective and occupational footwear EN ISO 20344 – 20347 classify footwear as cold protective by a pass/fail test where the limits are set for an allowed 10 °C temperature drop inside the footwear at a sole location during 30 minutes at a temperature gradient of about 40 °C. In a test of five footwear including a summer sandal it was shown that all
Particle generation from humans is a severe problem when working in cleanrooms and other controlled environments. Data regarding the number of particles generated by humans are few and there are no detailed references as to how these studies have been performed. An experimental method to determine the particle release from a human being in a cleanroom was developed and used to describe the variati
This paper presents a summary analysis of data regarding evacuation model users experiences and needs obtained via an online survey. The survey was available in 6 languages: English, German, Chinese, Spanish, Italian and Russian. The different versions allowed the survey to be accessible to an international participant base. The survey was developed by the team at www.Evacmod.net ; an evacuation m
The Gaia mission of the European Space Agency (ESA) will produce high-precision astrometry for 10^9 objects up to 20th magnitude. The volume of data generated (about 150TB of compressed raw data) and the complexity of the relationships between them make the scientific processing a challenging task. This paper presents the basic concepts of the core of the astrometric data reduction, the AGIS syste
The objective of this study was to evaluate total antioxidant capacity (TAC), total phenolic content (TPH), and the identification of anthocyanidin and polyphenolic compounds in 13 colored potatoes collected from the Andean region of Bolivia, and understand how the chemical composition correlated with the botanical classification and molecular characterization of genes, ans (anthocyanidin synthase
The HAMLET family of compounds (Human Alpha-lactalbumin Made Lethal to Tumours) was discovered during studies on the properties of human milk, and is a class of protein-lipid complexes having broad spectrum anti-cancer, and some specific anti-bacterial properties. The structure of HAMLET-like compounds consists of an aggregation of partially unfolded protein making up the majority of the compound'
Ethnographically inspired methods have in recent years been successfully applied in Information Science (IS) research on different forms of social media related practices (c.f. Sundin & Francke 2009a; 2009b, Kjellberg 2010). This paper aims to contribute to an emerging discussion on the use of this methodological approach for analysing and comprehending consequences of the 2.0-turn in public l
